Hydrochloric Acid → HCID 70495405, compound

HRID 2408075Notes

Reaction equation

C([O:3][C:4]([C:6]1[CH:7]=[C:8]2[C:13](=[CH:14][CH:15]=1)[NH:12][CH:11]([C:16]1[CH:21]=[CH:20][CH:19]=[C:18]([N:22]3[CH2:27][CH2:26][N:25]([C:28]4[CH:33]=[CH:32][C:31]([CH3:34])=[CH:30][C:29]=4[CH3:35])[CH2:24][CH2:23]3)[CH:17]=1)[CH2:10][C:9]2([CH3:37])[CH3:36])=[O:5])C.Cl>CO.O1CCCC1.[OH-].[Na+].O>[CH3:35][C:29]1[CH:30]=[C:31]([CH3:34])[CH:32]=[CH:33][C:28]=1[N:25]1[CH2:26][CH2:27][N:22]([C:18]2[CH:17]=[C:16]([CH:11]3[CH2:10][C:9]([CH3:37])([CH3:36])[C:8]4[C:13](=[CH:14][CH:15]=[C:6]([C:4]([OH:5])=[O:3])[CH:7]=4)[NH:12]3)[CH:21]=[CH:20][CH:19]=2)[CH2:23][CH2:24]1

Participants

Conditions

Temperature: 60 °C

Procedure

A mixture of 2-{3-[4-(2,4-dimethyl-phenyl)-piperazin-1-yl]-phenyl}-4,4-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid ethyl ester (0.28 g, 0.56 mmol) in methanol (3 mL) and tetrahydrofuran (10 mL), 30% sodium hydroxide in water (1 mL). The reaction mixture was stirred at 60° C. for 12 h. The mixture was neutralized with a 3 N aqueous hydrochloric acid solution and extracted with ethyl acetate (2×50 mL), washed with water, dried over anhydrous sodium sulfate and then concentrated in vacuo to afford 2-{3-[4-(2,4-dimethyl-phenyl)-piperazin-1-yl]-phenyl}-4,4-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid (0.25 g, 90%) as a white solid which was used for next step without further purification: MS (ESI) M+1=470.3.

Workup

extractionextracted with ethyl acetate (2×50 mL)
washwashed with water
dry with materialdried over anhydrous sodium sulfate
concentrationconcentrated in vacuo

Sources & evidence

ORD record: ord-d64757d61d8f4fb799daa84ca248fb4d
Source dataset: uspto-grants-2014_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08809369B2

Reaction notes

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